10511111012 has 12 divisors (see below), whose sum is σ = 18481623216. Its totient is φ = 5230647240.

The previous prime is 10511111003. The next prime is 10511111063. The reversal of 10511111012 is 21011111501.

It is a super-2 number, since 2×10511111012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6226118 + ... + 6227805.

It is an arithmetic number, because the mean of its divisors is an integer number (1540135268).

Almost surely, 2^10511111012 is an apocalyptic number.

It is an amenable number.

10511111012 is a deficient number, since it is larger than the sum of its proper divisors (7970512204).

10511111012 is a wasteful number, since it uses less digits than its factorization.

10511111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12454138 (or 12454136 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 14.

Adding to 10511111012 its reverse (21011111501), we get a palindrome (31522222513).

The spelling of 10511111012 in words is "ten billion, five hundred eleven million, one hundred eleven thousand, twelve".